公开(公告)号：US3801651A

公开(公告)日：1974-04-02

申请号：US3801651D

申请日：1971-12-20

Applicant: BAYER AG

Inventor： ADOLPHEN G ,  WEDEMEYER K ,  SUTTER W

IPC: B01J23/00 ,  B01J23/40 ,  B01J23/44 ,  B01J23/58 ,  C07C37/07 ,  C07C45/71 ,  C07C43/20

CPC classification number: C07C45/71 ,  B01J23/005 ,  B01J23/44 ,  B01J23/58 ,  C07C37/07 ,  C07C41/18 ,  C07C2601/14 ,  Y02P20/582 ,  C07C49/517 ,  C07C49/753 ,  C07C43/23 ,  C07C43/253 ,  C07C39/08

Abstract: PYROCATECHOL AND ITS MONOETHERS ARE PREPARED BY DEHYDROGENATING THE CORRESPONDING CYCLOHEXANONE COMPOUNDS OVER PALLADIUM ON A LITHIUM-ALUMINUM SPINEL CARRIER AT TEMPERATURES OF 150* C. TO 300*C.

公开(公告)号：US3781297A

公开(公告)日：1973-12-25

申请号：US3781297D

申请日：1971-12-02

Applicant: BAYER AG

Inventor： PAWELLEK D ,  WEDEMEYER K

IPC: C07D277/82 ,  C07D91/46

CPC classification number: C07D277/82

Abstract: 2-AMINOBENZOTHIAZOLE AND ITS N-ALKYL SUBSTITUTED PRODUCTS ARE PREPARED REACTING 2-MERCAPTOBENZOTHIAZOLE WITH AN AMINE AND SULFUR DIOXIDE INTHHE PRESENCE OF A METAL OXIDE, HYDROXIDE OR SALT CATALYST AT ELEVATED TEMPERATURE AND PRESSURE.

公开(公告)号：US3754007A

公开(公告)日：1973-08-21

申请号：US3754007D

申请日：1970-02-06

Applicant: BAYER AG

Inventor： SUTTER W ,  WEDEMEYER K

IPC: C07C45/57 ,  C07D303/48 ,  C07D493/10 ,  C07D1/02 ,  C07D13/00

CPC classification number: C07D493/10 ,  C07C45/57 ,  C07D303/48 ,  C07C49/403

Abstract: CYCLOHEXANEDIONE-(1,2)-HEMIHYDRATE ISOBTAINED BY INTRODUCING CYCLOHEXANOL, OPTIONALLY CONTAINING WATER, AND NITRIC ACID SIMULTANEOUSLY INTO AQUEOUS SULPHURIC ACID CONTAINING A CATALYTIC AMOUNT OF NITROUS ACID WITH THROOUGH MIXING AT A TEMPERATURE OF 0* TO 18*C.

公开(公告)号：US3853961A

公开(公告)日：1974-12-10

申请号：US31788972

申请日：1972-12-26

Applicant: BAYER AG

Inventor： BIRKENSTOCK U ,  WEDEMEYER K

IPC: C07C51/36 ,  C08G69/26 ,  C07C69/34 ,  C07C55/02

CPC classification number: C08G69/26 ,  C07C51/36 ,  C07C55/02

Abstract: IN WHICH R represents hydrogen or a methyl group and R1 represents an alkyl radical with from one to four carbon atoms or hydrogen. The compounds obtainable by the process according to the invention can be reacted with diamines to form novel polyamides (this applies both as regards the known linear diesters or dicarboxylic acids and in particular as regards the novel branched diesters and corresponding dicarboxylic acids).

IN WHICH R represents hydrogen or a methyl group and R1 represents hydrogen or a linear or branched lower alkyl radical is reacted with at most 1.95 mols of butadiene in the presence of a nickel catalyst which contains nickel in an oxidation state of less than +2 and which can be modified by donors, or nickel tetracarbonyl at a temperature in the range from about 50* to about 160*C, the unsaturated compounds formed are hydrogenated optionally without being isolated. The new compounds obtainable by this process correspond to the general formula

Dicarboxylic acid esters are obtained by reacting 1 mol of a compound corresponding to the general formula

Abstract translation: 二羧酸酯是通过使1摩尔相应于通式IN的化合物，其中R表示氢或甲基，R1表示氢或直链或支链的低级烷基与至多1.95摩尔的丁二烯反应， 的镍催化剂，其含有氧化态小于+2的镍，并且可以在约50至约160℃的温度范围内由供体或四羰基镍修饰，所形成的不饱和化合物可任选地被氢化 没有孤立

公开(公告)号：US3838068A

公开(公告)日：1974-09-24

申请号：US21915372

申请日：1972-01-19

Applicant: BAYER AG

Inventor： SCHERHAG B ,  HAUSWEITER A ,  HAGEDORN F ,  WEDEMEYER K

IPC: B01J23/18 ,  B01J23/28 ,  B01J23/31 ,  B01J23/835 ,  B01J27/18 ,  B01J11/82

CPC classification number: B01J23/835 ,  B01J23/18 ,  B01J23/28 ,  B01J23/31 ,  B01J27/18

Abstract: AN ACTIVATED TIN PHOSPHATE CATALYST IS PREPARED BY REACTING A TIN COMPOUND WITH A PHOSPHORIC ACID AND ACTIVATING THE TIN PHOSPHATE FORMED BY ADDING THERETO ONE OR MORE COMPOUNDS OF METALS FROM THE GROUP OF MOLYBDENUM, BISMUTH, VANADIUM, IRON AND COBALT AND THEREAFTER HEATING THE RESULTING MASS. THE TIN PHOSPHATE CATALYST CONTAINS IN THE RANGE OF 10 TO 30 PARTS BY WEIGHT OF PHOSPHORUS AND IN THE RANGE OF 30 TO 50 PARTS BY WEIGHT OF TIN PER 100 PARTS BY WEIGHT OF TIN PHOSPHATE. THE ACTIVATED TIN PHOSPHATE CATALYST CONTAINS FROM 1 TO 10% BY WEIGHT OF THE ACTIVATING METALS BASED ON THE WEIGHT OF THE TIN PHOSPHATE.

公开(公告)号：US3822311A

公开(公告)日：1974-07-02

申请号：US33925473

申请日：1973-03-08

Applicant: BAYER AG

Inventor： WEDEMEYER K ,  HELM R ,  PAWELLEK D

IPC: C07B61/00 ,  B01J31/00 ,  C07C67/00 ,  C07C201/00 ,  C07C205/58 ,  C07C79/46

CPC classification number: C07C205/58 ,  C07C201/12

Abstract: 2,5-DICHLORO-3-NITRO-BENZOIC ACID IS PRODUCED BY REACTING 5-CHLORO-3-NITRO-SALICYLIC ACID WITH AN EXCESS OF A CHLORINATING AGENT, PREFERABLY AT THE REFLUX TEMPERATURE OF THE MIXTURE, IN THE PRESENCE OF A N,N-DIALKYLCARBOXYLIC ACID AMIDE OR A TERTIARY AMINE AS A CATALYST, AND SPANIFYING, UNDER ACID CONDITIONS, THE ACID CHLORIDE THEREBY PRODUCED, THE YIELD THE DESIRED COMPOUND.